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Why can't decimal numbers be represented exactly in binary?
...or a moment from the particulars of bases 10 and 2. Let's ask - in base b, what numbers have terminating representations, and what numbers don't? A moment's thought tells us that a number x has a terminating b-representation if and only if there exists an integer n such that x b^n is an integer.
So...
Set focus on TextBox in WPF from view model
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Let me answer to your question in three parts.
I'm wondering what is "cs.txtCompanyID" in your example? Is it a TextBox control? If yes, then you are on a wrong way. Generally speaking it's not a good idea to have any reference to UI in your ViewModel. You can ask "Why?" but this is a...
Pass Multiple Parameters to jQuery ajax call
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To debug, first look at FireBug what's the exact response of the server, then put a break point in the web service method and see if it is reached.
– Darin Dimitrov
Dec 16 '09 at 18:08
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Force browser to clear cache
... file last-modified time, which is even easier to do). Not sure if that's what the previous commenter meant!
– Doin
Mar 15 '14 at 19:02
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NSDate get year/month/day
...r. Any given point in time will return different date information based on what calendar you're looking at (dates are not the same in both the Gregorian and Jewish calendars, for instance), and while the Gregorian calendar is the most widely used calendar in the world - I'm assuming - we're a little...
Catching multiple exception types in one catch block
...t/0aed2cc2a440e7be17552cc669d71fdd24d1204a
For PHP before 7.1:
Despite what these other answers say, you can catch AError and BError in the same block (it is somewhat easier if you are the one defining the exceptions). Even given that there are exceptions you want to "fall through", you should s...
Parsing boolean values with argparse
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@mgilson -- What I find misleading is that you can set type=bool, you get no error message, and yet, for both "False" and "True" string arguments, you get True in your supposedly boolean variable (due to how type casting works in python)...
Is there any reason for using WebGL instead of 2D Canvas for 2D games/apps?
...ox" but couldn't you detect that overridden part in JS and thus not redraw what's not needed?
– Pacerier
Oct 19 '17 at 4:47
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Iterator Loop vs index loop [duplicate]
...ledge on C++ and I've stumbled upon iterators. One thing I want to know is what makes them so special and I want to know why this:
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Easy way to test a URL for 404 in PHP?
...;
curl_setopt($handle, CURLOPT_RETURNTRANSFER, TRUE);
/* Get the HTML or whatever is linked in $url. */
$response = curl_exec($handle);
/* Check for 404 (file not found). */
$httpCode = curl_getinfo($handle, CURLINFO_HTTP_CODE);
if($httpCode == 404) {
/* Handle 404 here. */
}
curl_close($han...